80256380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1663}}^1$

素因数の和:1818

約数の個数: 48

約数和(自身を含む): 178913280

約数和(自身を除く): 98656900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 508, 635, 1270, 1663, 2413, 2540, 3326, 4826, 6652, 8315, 9652, 12065, 16630, 24130, 31597, 33260, 48260, 63194, 126388, 157985, 211201, 315970, 422402, 631940, 844804, 1056005, 2112010, 4012819, 4224020, 8025638, 16051276, 20064095, 40128190, 80256380]

約数ペア:

[(1, 80256380), (2, 40128190), (4, 20064095), (5, 16051276), (10, 8025638), (19, 4224020), (20, 4012819), (38, 2112010), (76, 1056005), (95, 844804), (127, 631940), (190, 422402), (254, 315970), (380, 211201), (508, 157985), (635, 126388), (1270, 63194), (1663, 48260), (2413, 33260), (2540, 31597), (3326, 24130), (4826, 16630), (6652, 12065), (8315, 9652)]